Tres epistolae de macvlis solaribvs
Subtitle: scriptae ad Marcvm Velservm ...  Cum obseruationum iconismis
Publisher: Ad insigne Pinus
Published: 1612
Place of publication: Avgvstae Vindelicorvm
Language: lat
Number of pages: 15
Subjects: Sunspots; Astronomy; Early works to 1800
Notes: Signed: Apelles latens post tabulam [i.e. Christoph Scheiner]